: While the exact contents are specific to the creator, the numbers "122922" often follow a date format (MMDDYY), potentially representing December 29, 2022 . "AFM" could be an abbreviation for a specific project, organization, or data type (e.g., Atomic Force Microscopy or Adobe Font Metrics). How to open and extract it

: A popular free choice for macOS users to handle .7z archives.

: This indicates a 7-Zip compressed archive . It is a container format that holds one or more files in a smaller, compressed size to save storage space and make sharing easier.